LIC1B-Stream

=Long Island Creek Site 1B - Stream=

__Overview__
Site 1B is a **muddy bottom stream** as defined by the Adopt-A-Stream criteria for "Determining Stream Type." Although North Georgia streams are typically **rocky bottom stream**, this middle-density residential stream has fine silt and organic matter deposits in the stream bed. The Site 1B muddy bottom stream type is represented in Long Island Creek by old-growth invasive privet and English ivy (vegetated margins), tree roots, leaves, and branches (woody debris with organic matter), and a substrate of mud.

__In-Stream Characteristics__
Using the Georgia Adopt-A-Stream Visual Survey Form, the stream reach is the "total distance upstream to downstream of the monitoring point" and therefore equals the bankfull width of 2 feet multiplied by 12 to produce a stream reach of 24 feet. On 19 June 2012, the visual survey was conducted and the weather was noted as having had rain within the previous 24 hours. One pool was identified with no flowing water. The stream reach was nearly completely embedded with mud. As mentioned before, the presence of leaves, twigs, and root mats were plentiful. The water clarity indicated no staining or suspended matter, but leaves were in the bottom of the pool.



__12 June 2012__
At the first Site 1B visit, the stream was a pool of murky, foul smelling water due to a rain event the previous day that caused erosion and runoff from the adjacent watershed area. The stream was a small pool with no water movement and, therefore, no velocity.

__Bank Erosion__
The remediation for erosion control includes a rock retaining wall on the downstream right bank and riprap of granite stones on the downstream left bank. These measures indicate that during heavy rain events, the water rises considerably more than during normal rain events. The restoration in the floodplain is somewhat successful in controlling the erosion and halting the deepening of the stream channel. The planting is now overgrown with shrubs that reduce the flow, which is a positive erosion control measure. However, the leaves and branches that clutter the streambed (leaf packs) cause interference to the flow. The plant root networks have reduced the erosion on both banks.



__19 June 2012__
At the second Site 1B visit, the pool of water was smaller due to percolation, evaporation, and no additional rain. However, the level of loss was much smaller than at Site 1A because of the enclosed nature of Site 1B. No wind and very little sunlight penetrate the overhead shrubs and trees. There was no water flow and no velocity. The water was still murky and foul smelling. = =

__26 June 2012__
At the third site visit, the pool of water was nearly gone. A very small pool of water remained in a clustering of rocks and mud at the streambed where the culvert emptied. The weather patterns during this investigation included very hot, dry days with record-breaking high temperatures as much as 100 degrees Fahrenheit.

__Physical Measurements__

 * Date || Bankfull width || Water width || Height 1 || Height 2 || Height 3 || Height 4 || Height 5 || Height 6 || Height 7 ||  ||   ||   ||
 * 19 June 2012 || 11 ft || 2 ft. || 0 || 4.00 || 3.83 || 3.00 || 2.41 || 1.25 || 0.00 ||  ||   ||   ||

__Discharge__
in decimal feet ||= Average Width in decimal feet ||= **Area** in seconds ||= Length in feet ||= **Speed** in cubic ft/seconds || As there is no stream flow during this study period, there is no stream discharge other than from evaporation and percolation.
 * = Date ||= Average Depth
 * in sqft** ||= Average Time
 * in ft/sec** ||= **Coefficient** ||= Stream Flow
 * = June 12, 2012 ||= 0.3667 ||= 1.5 ||= 0.55 ||= 0 ||= 2 ||= 0 ||= .9 ||= 0 ||
 * = June 19, 2012 ||= 0.10425 ||= 1 ||= 0.10425 ||= 0 ||= 1 ||= 0 ||= .9 ||= 0 ||
 * = June 26, 2012 ||= 0.5 ||= 0.333 ||= 0.1667 ||= 0 ||= 0.667 ||= 0 ||= .9 ||= 0 ||

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